使用 feign做apicenter的時候， provider需要到數據平臺請求數據，出現了一下的錯誤：

feign.RetryableException: Read timed out executing POST ：http://***/v1/***/406
        at feign.FeignException.errorExecuting(FeignException.java:84) ~[feign-core-10.1.0.jar!/:?]
        at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:113) ~[feign-core-10.1.0.jar!/:?]
        at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:78) ~[feign-core-10.1.0.jar!/:?]
        at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103) ~[feign-core-10.1.0.jar!/:?]
        at com.sun.proxy.$Proxy181.getData(Unknown Source) ~[?:?]
        at com.zgph.responsive.CAssemblyController.getData(CAssemblyController.java:77) ~[classes!/:0.0.1-SNAPSHOT]
        at sun.reflect.GeneratedMethodAccessor201.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_202]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_202]
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) ~[spring-web-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) ~[spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) [spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) [spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) [spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) [spring-webmvc-5.1.5.RELEASE.jar!/:5.1.5.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:665) [javax.servlet-api-4.0.1.jar!/:4.0.1]

網上找了好多， 但是都沒用用：

比如：

#ribbon的超時時間
ribbon:
  ReadTimeout: 3000
  ConnectTimeout: 3000

設置了也不行，跟蹤源碼， 找到了問題坐在：

org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer，找到一下的代碼

@Override
	public RibbonResponse execute(RibbonRequest request, IClientConfig configOverride)
			throws IOException {
		Request.Options options;
		if (configOverride != null) {
			RibbonProperties override = RibbonProperties.from(configOverride);
			options = new Request.Options(override.connectTimeout(this.connectTimeout),
					override.readTimeout(this.readTimeout));
		}
		else {
			options = new Request.Options(this.connectTimeout, this.readTimeout);
		}
		Response response = request.client().execute(request.toRequest(), options);
		return new RibbonResponse(request.getUri(), response);
	}

這兒設置了timeout， 繼續跟蹤：

org.springframework.cloud.openfeign.ribbon.FeignRibbonClientAutoConfiguration 發現了問題

 @Bean
    @ConditionalOnMissingBean
    public Options feignRequestOptions() {
        return LoadBalancerFeignClient.DEFAULT_OPTIONS;
    }

默認的時間太少了。所以解決的方法是，自己初始化options

 @Bean
    public Request.Options feignRequestOptions() {
        return new Request.Options(6000,6000);
    }

我的操作可以了， 不會超時了